Jaeger-LeCoultre Master Control Calendar

The Jaeger-LeCoultre Master Control Calendar, reference Q4148450, is a limited edition of 500 pieces with a 40 mm steel case. The case measures 10.95 mm thick, with a 20 mm lug width and a water-resistance rating of 50 metres. A grained grey dial has polished rhodium-finish numerals and hour-markers, luminous Dauphine hands, date, weekday, month and moon phase displays. Self-winding calibre 866 beats at 4 Hz with a 70-hour power reserve. The calibre uses 344 components, 34 jewels and a single barrel. A black calfskin leather strap has quick-release interchangeability and a steel double folding clasp.